High-Voltage, High-Current OPERATIONAL AMPLIFIER OPA544
High-Voltage, High-Current OPERATIONAL AMPLIFIER OPA544
High-Voltage, High-Current OPERATIONAL AMPLIFIER OPA544
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V+R 15kΩR 220kΩRG = – 2= –4R 1V IND 1<strong>OPA544</strong>D 2 1Ω0.01µFMotorV–D 1 , D 2 : Motorola MUR420 Fast Recovery Rectifier.FIGURE 4. Motor Drive Circuit.+30VREF10210V+30V+5V20kΩ8-bitdata port(8 + 4 bits)0-1mA10kΩDAC780112-bitM-DAC20pFOPA60210kΩ4.7kΩ470pF<strong>OPA544</strong>–30V40kΩ10Ω1µH1Ω0.01µFOutput series L/Rnetwork helps assurestability with very highcapacitance loads.V O±20Vat 2AFIGURE 5. Digitally Programmable Power Supply.®<strong>OPA544</strong>8
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